US20210053531A1 - Vehicle with a device for passive access control - Google Patents

Vehicle with a device for passive access control Download PDF

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Publication number
US20210053531A1
US20210053531A1 US16/977,674 US201916977674A US2021053531A1 US 20210053531 A1 US20210053531 A1 US 20210053531A1 US 201916977674 A US201916977674 A US 201916977674A US 2021053531 A1 US2021053531 A1 US 2021053531A1
Authority
US
United States
Prior art keywords
vehicle
antenna
reflector
accordance
ultra
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/977,674
Inventor
Muhammad Fawad Panhwar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hella GmbH and Co KGaA
Original Assignee
Hella GmbH and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hella GmbH and Co KGaA filed Critical Hella GmbH and Co KGaA
Publication of US20210053531A1 publication Critical patent/US20210053531A1/en
Assigned to HELLA GmbH & Co. KGaA reassignment HELLA GmbH & Co. KGaA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PANHWAR, Muhammad Fawad
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/209—Remote starting of engine
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00944—Details of construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q2240/00—Transportation facility access, e.g. fares, tolls or parking
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00507—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function
    • G07C2009/00531—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function immobilizer
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00507—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function
    • G07C2009/00539—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function anti-theft
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00507—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function
    • G07C2009/00547—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function starting ignition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems

Definitions

  • the invention relates to a vehicle with a device for passive authorization control, where the device features ultra-wideband antenna devices, by means of which the device with an electronic key for checking authorization for access is able to communicate activation of a function or the starting of the vehicle.
  • a vehicle is known from document EP 2 800 068 A2 with a device for passive authorization control featuring more than one ultra-wideband antenna devices.
  • the device for passive authorization can communicate, via the antenna device, with an electronic key for checking authorizations.
  • the document EP 2 800 068 A2 mainly concerns mechanisms for the prevention of what are known as relay attacks that can be used for the theft of vehicles with passive entry/passive go systems.
  • this problem is solved by least one of the antenna devices featuring at least one reflector that is arranged at a distance from an ultra-wideband antenna of the antenna device.
  • the arrangement of a reflector in the antenna device makes it better than previously possible to ensure that signals from the antenna are directed into the desired directions. Instead of previously uncontrolled reflections on parts of the body or other parts of the vehicle, reflections now occur, with a vehicle in accordance with the invention, that can be set or at least influenced by means of the reflector in such a way that in the area of the antenna device largely uniform and seamless coverage by the signals transmitted by the antenna device can be achieved.
  • the reflector may be a reflector plate or comprise a reflector plate. It is possible for the reflector to be part of the body of the vehicle or form part of the body of the vehicle. The body then features a special area that is designed as a reflector to bring about the desired behavior of the antenna device.
  • An antenna device of a vehicle in accordance with the invention may feature a housing.
  • the reflector may be formed within the housing by a housing wall and on a housing wall.
  • the reflector may, for example, be a galvanic coating of a housing wall.
  • the reflector may be of any shape. In particular, it may be flat or convex.
  • the antenna and the reflector allocated to it has proven to be especially beneficial for the antenna and the reflector allocated to it to feature a distance of approx. 5 mm to 30 mm, specifically approx. 15 mm to 30 mm, for example 10 mm.
  • a vehicle in accordance with the vehicle may have more than one antenna device. It is possible for the antenna device or each of the antenna devices to have more than one antenna.
  • the antenna or the antennas of an antenna device may be suitable and set up for transmitting linearly polarized UWB signals.
  • An electronic key for a vehicle in accordance with the invention or another suitable vehicle may feature an antenna for linearly polarized UWB signals. This has the advantage over an antenna for circularly polarized signals that the antenna may be smaller and require less area and/or installation space.
  • the antenna of such a key may be stamped part. Simple adaptations of the stamped part make it possible to set the antennas to a preferred frequency range.
  • One section of the stamped part may be a triangular or rounded monopole. A large bandwidth can be achieved in particular by means of a rounded monopole.
  • Using a stamped part instead of an antenna formed by tracks on a circuit carrier makes it possible to reduce the amount of spaced needed for the antenna. There are benefits even in comparison to a ceramic SMD antennas, namely the greater robustness of the stamped part in comparison to a ceramic antenna.
  • FIG. 1 is a schematic diagram of an antenna arrangement in a vehicle.
  • the antenna arrangement 1 shown in FIG. 1 features a housing 10 made of plastic in which the antenna is arranged.
  • the antenna 12 is formed by tracks on a circuit carrier 13 .
  • the antenna arrangement 1 further features a reflector 11 that is designed to have a distance of approx. 10 mm to the antenna.
  • the reflector 11 is designed to be on a housing wall and implemented in the form of a coating of the housing wall.
  • the housing 10 and thus the entire antenna arrangement 1 are mounted at an azimuth angle individual to each vehicle in relation to a direction longitudinal to the vehicle, preferentially in the area of a bumper or a vehicle lamp, behind a plastic cover on the bumper or the vehicle lamp that are penetrated by the signals transmitted by the antenna arrangement 1 and to be received by the antenna arrangement 1 .
  • the azimuth angle may, for example, be between 10 and 30° in relation to the direction longitudinal to the vehicle.

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Computer Security & Cryptography (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Aerials With Secondary Devices (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A vehicle with a device for passive authorization control is provided. The device features ultra-wideband antenna devices, by means of which the device with an electronic key for checking authorization for access is able to communicate activation of a function or the starting of the vehicle. At least one of the antenna devices features at least one reflector that is arranged at a distance from one ultra-wideband antenna of the antenna device.

Description

    CROSS REFERENCE
  • This application claims priority to PCT Application No. PCT/EP2019/055675, filed Mar. 7, 2019, which itself claims priority to German Application No. 10 2018 105837.3, filed Mar. 14, 2018, the entirety of both of which are hereby incorporated by reference.
    • FIELD OF THE INVENTION
  • The invention relates to a vehicle with a device for passive authorization control, where the device features ultra-wideband antenna devices, by means of which the device with an electronic key for checking authorization for access is able to communicate activation of a function or the starting of the vehicle.
    • BACKGROUND
  • A vehicle is known from document EP 2 800 068 A2 with a device for passive authorization control featuring more than one ultra-wideband antenna devices. The device for passive authorization can communicate, via the antenna device, with an electronic key for checking authorizations. The document EP 2 800 068 A2 mainly concerns mechanisms for the prevention of what are known as relay attacks that can be used for the theft of vehicles with passive entry/passive go systems.
  • The use of ultra-wideband signals for passive authorization control is still not very widespread and was consequently examined by the applicant. It transpired the the previous device concepts for passive authorization control for use with ultra-wideband signals need to be refined to achieve good results.
  • It emerged, for example, that there may be problems with coverage of the immediate vicinity of the vehicle with signals from the ultra-wideband antenna device. This means that areas in the immediate vicinity of the vehicle are not covered uniformly. This may lead to a situation where the signals of the ultra-wideband antenna devices do not reach an electronic key in the vicinity and passive authorization cannot be performed.
    • SUMMARY OF THE INVENTION
  • In accordance with the invention, this problem is solved by least one of the antenna devices featuring at least one reflector that is arranged at a distance from an ultra-wideband antenna of the antenna device. The arrangement of a reflector in the antenna device makes it better than previously possible to ensure that signals from the antenna are directed into the desired directions. Instead of previously uncontrolled reflections on parts of the body or other parts of the vehicle, reflections now occur, with a vehicle in accordance with the invention, that can be set or at least influenced by means of the reflector in such a way that in the area of the antenna device largely uniform and seamless coverage by the signals transmitted by the antenna device can be achieved.
  • The reflector may be a reflector plate or comprise a reflector plate. It is possible for the reflector to be part of the body of the vehicle or form part of the body of the vehicle. The body then features a special area that is designed as a reflector to bring about the desired behavior of the antenna device.
  • An antenna device of a vehicle in accordance with the invention may feature a housing. The reflector may be formed within the housing by a housing wall and on a housing wall. The reflector may, for example, be a galvanic coating of a housing wall.
  • In principle, the reflector may be of any shape. In particular, it may be flat or convex.
  • It has proven to be especially beneficial for the antenna and the reflector allocated to it to feature a distance of approx. 5 mm to 30 mm, specifically approx. 15 mm to 30 mm, for example 10 mm.
  • A vehicle in accordance with the vehicle may have more than one antenna device. It is possible for the antenna device or each of the antenna devices to have more than one antenna.
  • The antenna or the antennas of an antenna device may be suitable and set up for transmitting linearly polarized UWB signals.
  • An electronic key for a vehicle in accordance with the invention or another suitable vehicle may feature an antenna for linearly polarized UWB signals. This has the advantage over an antenna for circularly polarized signals that the antenna may be smaller and require less area and/or installation space. The antenna of such a key may be stamped part. Simple adaptations of the stamped part make it possible to set the antennas to a preferred frequency range. One section of the stamped part may be a triangular or rounded monopole. A large bandwidth can be achieved in particular by means of a rounded monopole. Using a stamped part instead of an antenna formed by tracks on a circuit carrier makes it possible to reduce the amount of spaced needed for the antenna. There are benefits even in comparison to a ceramic SMD antennas, namely the greater robustness of the stamped part in comparison to a ceramic antenna.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Reference is now made more particularly to the drawings, which illustrate the best presently known mode of carrying out the invention and wherein similar reference characters indicate the same parts throughout the views.
  • FIG. 1 is a schematic diagram of an antenna arrangement in a vehicle.
    •  DETAILED DESCRIPTION OF THE DRAWINGS
  • The antenna arrangement 1 shown in FIG. 1 features a housing 10 made of plastic in which the antenna is arranged. The antenna 12 is formed by tracks on a circuit carrier 13. The antenna arrangement 1 further features a reflector 11 that is designed to have a distance of approx. 10 mm to the antenna. The reflector 11 is designed to be on a housing wall and implemented in the form of a coating of the housing wall.
  • The housing 10 and thus the entire antenna arrangement 1 are mounted at an azimuth angle individual to each vehicle in relation to a direction longitudinal to the vehicle, preferentially in the area of a bumper or a vehicle lamp, behind a plastic cover on the bumper or the vehicle lamp that are penetrated by the signals transmitted by the antenna arrangement 1 and to be received by the antenna arrangement 1. The azimuth angle may, for example, be between 10 and 30° in relation to the direction longitudinal to the vehicle.
    • LIST OF REFERENCE SYMBOLS
    • 1 Antenna arrangement
    • 10 Housing
    • 11 Reflector
    • 12 Antenna
    • 13 Circuit carrier

Claims (10)

1. A device for passive authorization control of a vehicle, the device including:
an electronic key for checking authorization for access;
ultra-wideband antenna devices by means of which the device communicates activation of a function or the starting of the vehicle,
wherein at least one of the antenna devices features at least one reflector that is arranged at a distance from an ultra-wideband antenna of the antenna device.
2. The vehicle in accordance with claim 1, wherein the reflector includes a reflector plate.
3. The vehicle in accordance with claim 1, wherein the reflector forms a part of the body of the vehicle.
4. The vehicle in accordance with claim 1, wherein the antenna device features a housing and the reflector is positioned within the housing and is formed by a housing wall and on a housing wall.
5. The vehicle in accordance with claim 4, wherein the reflector is a coating of a housing wall.
6. The vehicle in accordance with claim 1, wherein the reflector is flat.
7. The vehicle in accordance with claim 1, wherein the reflector is convex.
8. The vehicle in accordance with claim 1, wherein the antennas and the reflector allocated to them feature a distance of approx. 10 mm.
9. The vehicle in accordance with claim 1, wherein the antenna device features more than one antenna.
10. The vehicle in accordance with claim 1, wherein the antenna device is suitable and set up for transmitting linearly polarized signals.
US16/977,674 2018-03-14 2019-03-07 Vehicle with a device for passive access control Abandoned US20210053531A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018105837.3A DE102018105837A1 (en) 2018-03-14 2018-03-14 Vehicle with passive access control device
DE102018105837.3 2018-03-14
PCT/EP2019/055675 WO2019175007A1 (en) 2018-03-14 2019-03-07 Vehicle having a device for passive access control

Publications (1)

Publication Number Publication Date
US20210053531A1 true US20210053531A1 (en) 2021-02-25

Family

ID=65729341

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/977,674 Abandoned US20210053531A1 (en) 2018-03-14 2019-03-07 Vehicle with a device for passive access control

Country Status (4)

Country Link
US (1) US20210053531A1 (en)
CN (2) CN114360113A (en)
DE (1) DE102018105837A1 (en)
WO (1) WO2019175007A1 (en)

Cited By (1)

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EP4283787A1 (en) * 2022-05-25 2023-11-29 Continental Automotive Technologies GmbH Antenna arrangement for an electronic key

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